Confusion on battery charging
I am confused about the best practices for charging batteries. For 7 years I had 300 AH of Lifeline AGM batteries, 270 watts of solar and a simple charging system. My old camper has a 110 volt c...
Forum Discussion
BFL13 wrote:
Your problem, as you said, is not enough solar to get it done in the one sunny day.
No, he didn't :)
He said that he couldn't get it to 14.3 and stay there for 2 hours. Conditions included clouds and smoke. Worn out battery could also behave differently.
10% DOD of 300AH bank means he doesn't need much current. With "some" sun through the smoke - let's say when you see the disc and it is bright enough to be not able to look at it - he should get to Absorb before noon and exit Absorb 2-3 hours later. It still doesn't hurt having more solar, because smoke haze coupled with clouds could double and triple the needed time, and more solar would counter this effect.
But, since he can't add more solar, he should at least upgrade solar controller to have self-adjusting Absorb time (and upgrade generator charging system too).
